[英]cv2.matchTemplate gives an error: (-215:Assertion failed)
import cv2
import numpy as np
kamera = cv2.VideoCapture(0)
while True :
ret,kare = kamera.read()
gri_kare = cv2.cvtColor(kare,cv2.COLOR_BGR2GRAY)
nesne = cv2.imread("nesn.jpg",0)
w,h = nesne.shape
res = cv2.matchTemplate(gri_kare,nesne,cv2.TM_CCOEFF_NORMED)
esikdeger = 0.8
loc = np.where(res > esikdeger)
for n in zip(loc) :
cv2.rectangle(nesne,n,(n[0]+h,n[1]+w),(255,255,255),2,)
cv2.imshow("asd",kare)
if cv2.waitKey(25) & 0xFF == ord("q"):
break
kamera.release()
cv2.destroyAllWindows()
我收到這個錯誤:
Traceback (most recent call last):
File "C:/Users/abrakadabra/Desktop/python/CV/nesnetanima1.py", line 16, in <module>
res = cv2.matchTemplate(gri_kare,nesne,cv2.TM_CCOEFF_NORMED)
cv2.error: OpenCV(3.4.2) C:\projects\opencv-python\opencv\modules\imgproc\src\templmatch.cpp:1107: error: (-215:Assertion failed) _img.size().height <= _templ.size().height && _img.size().width <= _templ.size().width in function 'cv::matchTemplate'
當cv2.matchTemplate
的輸入圖像cv2.matchTemplate
灰度時,它起作用。
在讀取圖像后添加以下行nesne = cv2.cvtColor(nesne, cv2.COLOR_BGR2GRAY)
它將起作用。
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